Optimization and microstructure analysis of Corten steel joint in mag welding by post heat treatment

Vairamani, V.; Mohan, Nanjangud; Venkatesh,; Karthikeyan, S.; Sakthivel, M.

doi:10.1016/j.matpr.2019.06.737

Cited by 15 publications

(9 citation statements)

References 3 publications

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“…During welding, an arc is generated between a consumable metal electrode and the workpiece with the use of an externally supplied gaseous shield of inert gas, such as argon and/or helium [13]. According to Vairamani et al [14] a consumable wire electrode distinguishes metal inert gas (MIG) welding from metal active gas (MAG) welding, which are both commonly referred to as GMAW. In this procedure, an arc is created between the workpiece and an electrode made of metal wire that is continuously supplied into the arc.…”

Section: Fss Weldments Produced By Gas Metal Arc Welding (Gmaw)mentioning

confidence: 99%

Recent findings on corrosion of ferritic stainless steel weldments: A review

Inya,

Etim,

Uchenna

et al. 2023

Zaštita materijala

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This study covers the review of the degradation of ferritic stainless-steel weldments between 2015 and 2022. The industrial and automotive sectors make extensive use of ferritic stainless steel (FSS) due to its superior oxidation and corrosion resistance, low price, high thermal conductivity, and low thermal expansion. However, it has been reported that ferritic stainless steel is harder to weld than austenitic stainless steel and that doing so would probably result in a weaker welded joint owing to the coarsening of grains high welding temperatures. According to past research, the amount of heat applied during the welding procedure affected how soon the FSS (409 M) weldment degraded after being exposed to NaCl (3.5%) medium. The coarsening of the grains was considered to be the cause of this. When the shielding gas' CO2 content increased, the intergranular corrosion of the FSS weld metal was found to increase. Welds made with the ER430LNb filler metal had significantly lower intergranular corrosion of FSS (AISI 441) than those made with the ER430Ti filler metal. It was discovered that boiling Cu-CuSO4 - 50% H2SO4 solution increased the corrosion rate for the FSS (AISI 430) weldment more than boiling 40% HNO3 Solution. Weldments made of FSS (AISI 430) were found to be negatively affected by the CuCuSO4 - 50% H2SO4 environment in terms of intergranular corrosion attack.

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Section: Fss Weldments Produced By Gas Metal Arc Welding (Gmaw)mentioning

confidence: 99%

Recent findings on corrosion of ferritic stainless steel weldments: A review

Inya,

Etim,

Uchenna

et al. 2023

Zaštita materijala

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“…Therefore, the influence of pearlite volume fraction in reducing the toughness is eradicated. 6 Furthermore, the presence of elements such as chromium, nickel, phosphorus and silicon significantly increases the corrosion resistance of BS46 steel. BSK 46 steels exhibit improved strength compared to carbon steels; however, they are 20-30% lighter.…”

Section: Introductionmentioning

confidence: 99%

Investigations on microstructural and mechanical properties of BSK 46 steel weldments

Sivateja

Asati

Vidyarthy

2023

Proceedings of the Institution of Mechanical Engineers, Part E:

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BSK 46 is a low alloy structural steel with excellent mechanical and corrosion properties and is widely used in many applications, including tipper bodies of heavy-duty trucks. Optimizing the welding parameters to reduce defects and improve productivity is critical for the users. The present work addresses optimizing the welding process parameters to improve productivity with adequate weld quality during the pulsed gas metal arc welding (P-GMAW) process. Three BSK 46 weldments (weld-1, weld-2 and weld-3) were fabricated by varying the root gap, root face, filler pass and heat input. The metallographic and mechanical characterization of P-GMAW weldments were done through microstructures, Vickers micro-hardness, transverse tensile strength, Charpy toughness and three-point bend test. Subsequently, a correlation has been developed between the microstructural features and mechanical properties of the weld joints. The hardness was found to be incremental in nature from the base metal to the fusion zone. Maximum hardness of 215.81 ± 10 HV was observed in the weld-3 fusion zone. Tensile test results reveal that weld-3 weldments exhibit a higher tensile strength of 547.48 ± 2 MPa than weld-1 (537.46 ± 7 MPa) and weld-2 (533.67 ± 9 MPa) weldments. Maximum impact toughness of 136.33 ± 14 J was observed in the weld-3 weldments. Post-bend testing showed no cracks on the weld surfaces, indicating defect-free weld joints with good ductility. It is observed that weld-3 showed relatively better mechanical properties than weld-1 and weld-2 in lesser welding time and lower welding cost

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“…A 90% Ar + 10% CO 2 shielding gas was used to deposit filler metal using the spray transfer mode. Spray is preferred in industries because it offers uniform transfer, low spatter, high weld penetration, and lower smoke production than other modes during steel welding [33,34]. There were established relationships among microstructure evolution, microhardness, and tensile properties of the welded joints.…”

Section: Introductionmentioning

confidence: 99%